<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<script type="text/javascript">
	/*==*/
		console.log(10=="10");
		console.log(null==undefined);
		console.log(NaN==NaN);
	/*!=*/
		console.log(10!="9");
	/*===*/
		console.log(10==="10");
	/*！==*/	
		console.log(10!=="9");
	
	</script>
	<body>
	</body>
</html>
